During the briefing for the big mission, the jet Puchushkin is supposed to be on is tail number N237JA, but the tail number the intersects flash on is N237GA.
The Gretas flash on the bomb and say "Portable fission device. 5 kiloton yield. Approximate fireball radius, 2 kilometers." Actually, a ground burst of a 5 kiloton yield would only give about a 150 meter diameter fireball. A 500 kiloton burst fireball would barely hit one kilometer radius.
When it was suggested to take the bomb to somewhere less populated to blow up, Chuck says "we are in LAX, there is nowhere near us that's not heavily populated" but LAX airport is right next to the ocean so they could dump the bomb into the ocean several miles offshore.
At 33:28, Sarah Walker (Yvonne Strahovski) calls Captain Victoria Dunwoody / Greta by her real name, Stacy (Stacy Keibler). As they try to take down a villain, she yells, "Stacy, no, don't shoot!"